International Federation of Digital Seismograph Networks

HE: Finnish National Seismic Network

For the most complete and current information about this network, visit https://doi.org/10.14470/UR044600.

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FDSN Network Information

FDSN code HE Operated by University of Helsinki
Network name Finnish National Seismic Network (HEL) Deployment region Finland
Start date Jan. 1, 1980 End date -
Short description

The Institute of Seismology, University of Helsinki (ISUH) was founded in 1961 as a response to the growing public concern for environmental hazards caused by nuclear weapon testing. Since then ISUH has been responsible for seismic monitoring in Finland. The current mandate covers government regulator duties in seismic hazard mitigation and nuclear test ban treaty verification, observatory activities and operation of the Finnish National Seismic Network (FNSN) as well as research and teaching of seismology at the University of Helsinki. The Institute of Seismology, University of Helsinki (ISUH) was founded in 1961 as a response to the growing public concern for environmental hazards caused by nuclear weapon testing. Since then ISUH has been responsible for seismic monitoring in Finland. The current mandate covers government regulator duties in seismic hazard mitigation and nuclear test ban treaty verification, observatory activities and operation of the Finnish National Seismic Network (FNSN) as well as research and teaching of seismology at the University of Helsinki. The FNSN has expanded significantly during the 21st Century. It comprises now 36 permanent stations. Most of the stations have Streckeisen STS-2, Nanometrics Trillium (Compact/P/PA/QA) or Guralp CMG-3T broad band sensors. Some Teledyne-Geotech S13/GS13 short period sensors are also in use. Data acquisition systems are a combination of Earth Data PS6-24 digitizers and PC with Seiscomp/Seedlink software or Nanometrics Centaurs. The stations are connected to the ISUH with Seedlink via Internet and provide continuous waveform data at 40 Hz (array) or 100-250 Hz sampling frequency. Further information about instrumentation can be found at the Institute’s web site (www.seismo.helsinki.fi).

Citation Information

Digital Object Identifier (DOI) https://doi.org/10.14470/UR044600
Citation
Institute Of Seismology, U. O. H. (1980). The Finnish National Seismic Network. GFZ Data Services. https://doi.org/10.14470/ur044600

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Data Availability

Data available from GEOFON using FDSN Web Services. See http://geofon.gfz-potsdam.de for more information including data access tools.

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